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THREAT OPS › Threat News › [NVD] CVE-2026-46054 (HIGH 7.1) — In the Linux kernel, the following vulnerability has been resolved: selinux: fix overlayfs mmap() and mprotect() access checks The existing SELinux security model for overlayfs is to allow access if the current task is able to access the top level file (the "user" file) and the

[NVD] CVE-2026-46054 (HIGH 7.1) — In the Linux kernel, the following vulnerability has been resolved: selinux: fix overlayfs mmap() and mprotect() access checks The existing SELinux security model for overlayfs is to allow access if the current task is able to access the top level file (the "user" file) and the

lownvdPublished 2026-05-27

CVE-2026-46054 CVSS: 7.1 HIGH Published: 2026-05-27T14:17:25.043

In the Linux kernel, the following vulnerability has been resolved:

selinux: fix overlayfs mmap() and mprotect() access checks

The existing SELinux security model for overlayfs is to allow access if the current task is able to access the top level file (the "user" file) and the mounter's credentials are sufficient to access the lo

MITRE ATT&CK techniques

CredentialsT1589.001

Indicators of compromise

CVE-2026-46054cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-46054